Unit 1 Cells and Evolution

Cell (Multicellular)

Specialized to carry out specific functions ex muscle cells

Tissue

Group of cells that are similar in function ex skin

Organ

Tissues that organized into larger structures ex. Heart

Organ systems

Different organs organized into a system. Ex digestive system

Organisms

An individual animal, plant or single cell life form

Nutrients

provides organisms with what they need to grow. 1 of 4 things needed for live

ATP

Adenosine triphosphate, the primary energy currency powers daily functions

Autotrophs

producers, plants and certain bacteria

Heteratrophs

Consumers such as carnivores and omnivores and herbivores

Homeostasis

Being able to regulate your temperature ex shivering in the cold

Multicellular

Organisms made of many cells and are complex such as plants and animals

Prokaryotes

Simple Unicellular Organisms, always bacteria and has no membrane bound organelles or nucleus

Eukaryotes

Complex organisms can be unicellular or multicellular. ( Most living things are eukaryotes)

Neuron aka Nerve Cell

A very long a thin cell that sends info to other parts of the body

Red Blood Cells

Carries oxygen throughout the body and is shaped like a flat disk

Sperm Cell

Fertilizes egg cells and tail for swimming through the body and head shape for entering egg cells

Cell Differentiation

A result of Gene Expression, process in which genes are turned on and off resulting in making proteins

Stem cells

Blank Cell that can become any cell in your body, scientists are working to use it to cure diseases